Studies of Paleozoic Nautiloidea I-VII. (I. Tissue Remnants in the Phragmocone of Rayonnoceras; II. Werneroceras in the Devonian of New York; III. A Gonioceras from Virginia; ...).
140 pp., 6 pls.
The rest of the title: IV. Investigations of actinosiphonate cephalopods; V. New Ordovician cephalopods from eastern North America; VI. Some Silurian cyrtoconic cephalopods from Indiana with notes on stratigraphic problems; VII. Annulated orthoceraconic genera of Paleozoic nautiloids
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